Table of Contents

1. Ryukyu-don
2. Toriten
3. Seki Aji & Seki Saba

About Oita Prefecture’s Gourmet Cuisine

Oita Prefecture is located in the northeastern part of Kyushu, embraced by the rich seas of the Bungo Channel and Beppu Bay, as well as the mountains of Mount Yufu and the Kuju Mountain Range. The swift currents of the Hayasui Strait nurture premium fish, while the inland areas are dotted with some of Japan’s finest hot spring resorts. This intersection of fishing culture and hot spring bathing culture has refined a diverse array of ingredients and cooking methods over the centuries.

Among the many local delicacies, “Ryukyu-don,” “Toriten,” and “Seki Aji & Seki Saba” are beloved by locals and enchant travelers as the representative flavors of Oita. When visiting, be sure to savor these dishes and experience the profound food culture born from the interplay of sea, mountains, and hot springs that is unique to Oita.

Top 3 Gourmet Picks from Oita Prefecture

Ryukyu-don

Source: Tabelog

　● The Appeal of Ryukyu-don 

Ryukyu-don is a rice bowl for the sophisticated palate — with every bite, the spirit of a fishing town and the elegance of Oita unfold simultaneously. The freshest seasonal fish of the day, such as richly marbled Seki Aji, yellowtail, or mackerel, is thinly sliced and briefly marinated in a sweet-savory sauce of soy sauce, sake, and mirin, enhanced with ground sesame and ginger. This simple preparation beautifully highlights the natural umami of the ingredients.

Take a bite and the sweetness of the marinade melts together with the pristine clarity of the fish. Midway through, pour hot dashi broth or tea over the bowl to enjoy a “second heavenly experience” — a refined way to savor the dish. With a glass of chilled local sake in hand after a long day, each mouthful warms both cheeks and spirits — that is the magic of Ryukyu-don.

　● History of Ryukyu-don 

　The roots of Ryukyu-don sprouted where the rich fishing grounds carried by the Kuroshio Current intersected with the practical ingenuity and playful spirit of the fishermen who lived off them. Whether it originated in the late Edo period or early Meiji era remains uncertain, but aboard boats along the Oita coast, it was common practice to dip freshly caught horse mackerel and mackerel in a marinade of soy sauce, sake, mirin, sesame, and ginger — a technique known as “okizuke” (offshore pickling) — to preserve the catch. This preservation wisdom gently seasoned the fish, and the resulting bowls that filled the stomachs of men returning from rough work at sea eventually came to be known as “ryukyu.” 

Two elegant theories remain regarding the origin of the name. One is the “sea route” theory, which holds that fishermen from Ryukyu (Okinawa) who traveled northward passed on this marinating technique. The other is the “wabi-sabi” theory, suggesting that the name derives from “Rikyu-ae,” a sesame-dressed dish named after the tea master Sen no Rikyu, which was phonetically corrupted over time.

　● Where to Eat Ryukyu-don! 

• Restaurant: Nidaime Yoichi
  
• Highlights:
  What sets “Nidaime Yoichi’s” Ryukyu-don apart is its unwavering commitment to ingredients. Particularly noteworthy is its lavish use of Seki Aji, Oita’s prized premium brand fish. Seki Aji, raised in the swift currents of the Hoyo Strait, is known for its firm flesh and concentrated umami. The restaurant’s style is to marinate this “supremely fresh” Seki Aji in a Kyushu-style sweet soy sauce marinade. This sauce enhances the fish’s natural umami while creating an irresistibly moreish flavor. The addition of sesame fragrance and wasabi lends further depth to the taste.
  
  
• Address: 4-1-21 Chuo-machi, Oita City, Oita Prefecture
  
• Access: Approximately 3-9 minute walk from JR Oita Station (Funai Chuo Exit / North Exit)
• Google Maps: https://maps.app.goo.gl/i7VPPbxPWG8mr8yY9

Seki Aji & Seki Saba (Seki Horse Mackerel & Seki Mackerel)

Source: Tabelog

　● The Appeal of Seki Aji & Seki Saba 

Seki Aji and Seki Saba are brand fish that anyone familiar with the Saganoseki Strait reverently calls “Seki-mono” (fish of Seki). Raised in the Hayasui Strait, where currents are among the fastest in the Bungo Channel, their flesh is taut and firm, with a subtle golden sheen characteristic of resident fish.

Oita’s chefs are equally masterful in their repertoire for showcasing these treasures. Roughly cut and soaked in sesame sauce as “ryukyu,” the briny aroma meets the richness of sesame. Formed into nigiri sushi, the warmth of the rice gently melts the fat. Seared or salt-grilled to bring out fragrance, then finished with a squeeze of kabosu citrus to tighten the flavors — every preparation lets you experience the moment where the elegance and wild spirit of “Seki-mono” coexist.

　● History of Seki Aji & Seki Saba 

The story of Seki Aji and Seki Saba is the very process of fishermen’s experience and market wisdom slowly crystallizing against the backdrop of the Hayasui Strait, the narrowest section of the Bungo Channel. It is said that already in the late Edo period, the custom of treating fish caught at Saganoseki as “Seki-mono” — something in a class of their own — was established. The firm flesh forged by the swift currents and the subtle golden luster had earned a reputation early on.　

However, the clear contours of their identity as “brand fish” emerged from the late Showa period through the early Heisei era. The Saganoseki Fisheries Cooperative unified quality standards and distribution management to share the meticulous handling practices of line-fishing and ikejime (live killing), and to correct price inconsistencies that fishermen had experienced in direct trading. Around 1990, the cooperative launched full-scale branding efforts under the names “Seki Aji” and “Seki Saba” to protect their market reputation.

　● Where to Eat Seki Aji & Seki Saba! 

• Restaurant: Amabe no Sato Seki Aji Seki Saba Kan / Shiraki Coast Restaurant
  
• Highlights:
  “Amabe no Sato Seki Aji Seki Saba Kan” is committed to serving these prized Seki Aji and Seki Saba at their peak freshness. The short distance from the port to the restaurant provides an absolute advantage in maintaining freshness.
  The dishes served center around sashimi and seafood rice bowls, which allow you to fully appreciate the natural flavors of the fish. In particular, the “Seki Seafood Bowl” features generously large cuts of fish that overflow the bowl, adding to its visual and gustatory appeal.
  
  
• Address: 949 Oaza Shiraki, Oita City, Oita Prefecture 
  
• Access: Approximately 15-minute drive from JR Kosaki Station
• Google Maps: https://maps.app.goo.gl/xsvJKoWT9puGdJRE8